{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "496930",
    "entityType": "User",
    "nonce": "0x79ca4556978b9cda38a15615d8a46f77c93b886dd2fed66b794f6a759497dbc6",
    "signature": "0x99fa8c2513c76f177a89bf9284a904ea5030f4c1923b8fead311beccd96b0e48571bce795925d39046ddccc0d8406bef6b71e9154810a35f6e09d1854bbda5cb1b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}